#region Copyright

// AUTHOR: Omar Zabala
// Copyright (c) 2011, TheShieldStore.com
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
// 
// Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
// Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation
//  and/or other materials provided with the distribution. Neither the name of the TheShieldStore.com nor the names of its contributors may be used to endorse
//  or promote products derived from this software without specific prior written permission. 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
// AND ANY EXPRESS OR IMPLIED WARRANTIES,  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
// IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
//  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#endregion

namespace DisplayShield
{
    public struct Point
    {
        private int _x, _y;
        private int _maxX, _maxY;

        public Point(int x = 0, int y = 0, int maxX = 0, int maxY = 0)
        {
            _maxX = maxX;
            _maxY = maxY;
            _x = x;
            _y = y;

            _x = filter(x, true);
            _y = filter(y, false);
        }

        private int filter(int input, bool x)
        {
            int output = input;

            if (x)
            {
                if (_maxX > 0 && input > _maxX)
                    output = _maxX;
                else if (input < 0)
                    output = 0;

                return output;
            }

            if (_maxY > 0 && input > _maxY)
                output = _maxY;
            else if (input < 0)
                output = 0;

            return output;
        }

        public int X
        {
            get { return _x; }
            set { _x = filter(value, true); }
        }

        public int Y
        {
            get { return _y; }
            set { _y = filter(value, false); }
        }

        public int X_MAX
        {
            get { return _maxX; }
            set { _maxX = value; }
        }

        public int Y_MAX
        {
            get { return _maxY; }
            set { _maxY = value; }
        }

        public static bool operator ==(Point c1, Point c2)
        {
            return c1.X == c2.X && c1.Y == c2.Y;
        }

        public static bool operator !=(Point c1, Point c2)
        {
            return !(c1.X== c2.X || c1.Y == c2.Y);
        }

        public override string ToString()
        {
            return "(" + _x + ", " + _y + ")";
        }
    }
}